Compatible with the following instruments:ST70* ST60+ ST290Compatible hull material: Wood and FiberglassFrequency: 200 kHzCable: 45ft cableHole diameter for installation: 2″Note: E66023 Fairing block sold separately.*Using with ST70 requires purchase of ST70 Speed Pod and ST70 Depth Pod, sold separately. Specifications:Temperature: YesSpeed Included: YesMounting Style: Thru-HullChirp: NoCable Length (Feet): 45’Box Dimensions: 4″H x 8″W x 10″L WT: 5.7 lbsUPC: 723193260432